Using a number after "< " in 'only when' conditions

Hi everyone,
I have a weather button on my home page that show the updated weather from my API and shows it.
Now I want to add a notification that when someone clicks on it and the weather is <5 degrees, it show the notification “danger of frost”.
here is what I’ve done so far:
I’ve made an invisible text element called Notice; I’ve created a work flow for my button like: when clicked ->element action->show.
:sos:
now I’m stuck with the only when condition, I use search for to read the temperature data from my Data types, but I can’t type a number after I choose the < operator :smiling_face_with_tear:
how should I deal with this?
I added a screenshot too.

Why can’t you type it?

That’s how you do it (just type the number 5)

Just press the 5 key on the keyboard and click way